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Embedding QWidget into X11 Window

Tags:

c++

x11

qt

xlib

I want to embed two QWidgets into a window created using XLib. I have written this code:

// Assume all the necessary headers included

int main(int argc, char *argv[])
{
   QApplication app(argc, argv);

   // Create widget 1
   QWidget widget1 ; 
   widget1.setGeometry(44,44,666,666);
   widget1.show();

   // Create widget 2   
   QWidget widget2 ;
   widget2.setGeometry(144,144,666,666);
   widget2.show();      

   Display *display = XOpenDisplay( 0 ); // 0 parameter for default values

   if ( display != NULL )
   {
      // Create the x11 window using XLib
      Window w = XCreateWindow(display, DefaultRootWindow(display), 
      0, 0, 1200, 1100, 0,CopyFromParent, CopyFromParent, CopyFromParent, 0, 0);

      XMapWindow(display, w);
      XFlush(display);

      XReparentWindow(display, widget1.winId(), w, 0, 0);
      XReparentWindow(display, widget2.winId(), w, 1, 10);
  }

  else
      std::cout << "Error: Opening display" << std::endl ;

      return app.exec();
}

I am able to run this program successfully but these widgets are not getting embedded into the X11 window I created. All three things are getting created, but independently. These widgets are not getting embedded into the window.

like image 372
Amit Tomar Avatar asked Apr 10 '12 13:04

Amit Tomar


1 Answers

the following would indicate that perhaps you need to think about the order of displaying the widgets so that the winId for your widgets gets set to something that can be passed to XReparentWindow .

http://www.qtforum.org/article/16529/xreparent-external-x11-application.html

like image 67
john.k.doe Avatar answered Sep 21 '22 04:09

john.k.doe